For issues you find with the Mobile 1.3 update, please follow this link and give as much detail as possible. This is the speediest way to get info to DR Studios to look at your issue. Also, some troubleshooting hints here.

(2/2)
the waiting game, as far as updating to 1.3 goes. I feel like I have all of the exclusive content on life support, but, with the exception of biome key molds, I don't want that. How long is it going to take me to solve this problem?

(3/3)
I looked into it a bit, and Google is saying that Terrraria isn't compatible with my device anymore. (EXCUSE ME? How is Android 7 OS not compatible?)
EDIT: I even checked the specs, my tablet meets them.

When 1.1 was announced to be the last update we let it die just fine. The most active part of the forums back then were the modding community and the randomness that happens in offtopic.
Honestly the main reason Terraria's being updated again, in my humble opinion, is because Otherworld flopped and it's just easier to keep updating Terraria instead of building unreasonable expectations for a new game.